77 40 | X | + | ( | 1000 | ÷ | 135 | ) | ( | 940 | − | X | ) | = | 2860 |
方程左边 = | 77 40 | X | + | 1000 | ÷ | 135 | × | ( | 940 | − | X | ) |
= | 77 40 | X | + | 200 27 | ( | 940 | − | X | ) |
= | 77 40 | X | + | 200 27 | × | 940 | − | 200 27 | X |
= | 77 40 | X | + | 188000 27 | − | 200 27 | X |
= | - | 5921 1080 | X | + | 188000 27 |
- | 5921 1080 | X | + | 188000 27 | = | 2860 |
- | 5921 1080 | X | = | 2860 | − | 188000 27 |
- | 5921 1080 | X | = | - | 110780 27 |
110780 27 | = | 5921 1080 | X |
5921 1080 | X | = | 110780 27 |
X | = | 110780 27 | ÷ | 5921 1080 |
= | 110780 27 | × | 1080 5921 |
= | 110780 | × | 40 5921 |
X | = | 4431200 5921 |
X | = | 748.387097 |